/************main-start***************/

.main{
    width: 75%;
    float: left;
    display: inline-block;
}

/**main-back**/
.main .back{
    margin-top: 2rem;
    cursor: pointer;
}
.main .back button{
    border: none;
    background-color: #cccccc;
    padding-right: 1rem;
    border-radius: 0 0.5rem 0.5rem 0rem;
}

.main .back button span{
    line-height: 3rem;
    float: left;
}
.main .back button .icon{
    color: #666666;
    font-size: 2.5rem;
    font-weight: bolder;
}

.main .back button .text{
    font-size: 1.5rem;
    color: #555555;
    font-weight: normal;
}


/**main-title**/
.main .title{
    line-height: 8rem;
    text-align: center;
}

.main .title p{
    font-size: 2rem;
}
/**main-top-bar**/
.main .main-top-bar{
    text-align: center;
    padding: 0;
    margin-top: 5rem;
}

.main .main-top-bar a{
    line-height: 4rem;
    width: 12rem;
    display: inline-block;
    font-size: 1.6rem;
    font-weight: bold;
    color: #666666;
}

.main .main-top-bar a.current{
    border-top: 0.2rem solid #1e8e47;
    border-bottom: 0.2rem solid #1e8e47;
}

/**main-content**/
.main .main-content .dom{
    width: 100%;
    text-align: center;
    display: none;
}

.main .main-content .dom .ear{
    height: 15rem;
    overflow: hidden;
}

.main .main-content .dom #left-ear,
.main .main-content .dom #right-ear{
    position: relative;
    top: 2rem;
    width: 5rem;
    height: 15rem;
    border: 0.2rem solid #cccccc;
    border-radius: 10px;
    display: inline-block;
}

.main .main-content .dom #left-ear{
    right: 10%;
    transform: rotate(-50deg);
}

.main .main-content .dom #right-ear {
    left: 10%;
    transform: rotate(50deg);
}

.main .main-content .dom .main-video{
    width: 70rem;
    height: 50rem;
    border: 0.2rem solid #cccccc;
    border-radius: 2rem;
    text-align: center;
    margin: 0 auto;
    padding-top: 5rem;
    z-index: 1;
    /*background-color: #cccccc;*/
}

.main .main-content .dom .main-video video{
    width: 60rem;
    height: 40rem;
    border: 0.1rem solid #dddddd;
    outline: none;
    object-fit: fill;
}

.main .main-content .dom .main-video video embed{
    width:60rem;
    height: 45rem;
    background-color: blue;
}

.main .main-content .dom .main-test{
    width: 60rem;
    min-height: 60rem;
    margin: 0 auto;
}

.main .main-content .dom .main-test{
    text-align: left;
}

.main .main-content .dom .main-test ul li{
    background-color: #fff;
    padding:3rem 0;
    border-bottom: 0.1rem solid #aaaaaa;
}

.main .main-content .dom .main-test ul li:last-child{
    border: none;
    padding-bottom: 0;
}

.main .main-content .dom .main-test ul li p{
    font-size: 1.5rem;
}

.main .main-content .dom .main-test ul li div{
    line-height: 3rem;
    font-size: 1.5rem;
}

.main .main-content .dom .sub input{
    border-radius: 0.1rem;
    background-color: #0d9b1f;
    color: white;
    padding: 0.5rem 1rem;
    font-size: 1.4rem;
    font-weight: lighter;
    box-shadow: 0.1rem 0.1rem 0.1rem #78cba5;
    cursor: pointer;
}

.main .main-content .dom .score{
    margin-top: 5rem;
}

.main .main-content .dom .score .t{
    font-size: 1.6rem;
}

.main .main-content .dom .score .s{
    font-size: 2.4rem;
    color: red;
    margin-right: 2rem;
}

.main .main-content .dom .score .c{
    cursor: pointer;
    margin-left: 2rem;
    margin-top: 2rem;
    font-size: 2rem;
    font-weight: bolder;
    color: #1e90ff;
    display: block;
}

.main .main-btn{
    text-align: center;
    padding-bottom: 10rem;
    padding-top: 10rem;
}

.main .main-btn button{
    padding: 1rem 2rem;
    border: 0.1rem solid green;
    font-size: 1.5rem;
    color: green;
    background-color: #fff;
}

/************main-start***************/



/************menu-start***************/

.menu{
    width: 25%;
    height: 100%;
    background-color: #f9f9f9;
    float: right;
    position: fixed;
    display: inline-block;
    box-shadow: -0.4rem 0 0.4rem #333333;
}

.menu .menu-top{
    height: 15%;
    background-color: #5b696e;
    text-align: center;
    position: relative;
}

.menu .menu-top span{
    position: absolute;
    top: 50%;
    transform: translateY(-50%) translateX(-50%);
    font-size: 2rem;
    color: #fff;
    border-radius: 0.5rem;
    padding: 1rem;
}

.menu .menu-content{
    height: 85%;
    overflow: scroll;
}

.menu .menu-content>ul{
    padding: 2rem;

}

.menu .menu-content ul li span{
    font-size: 1.8rem;
    height: 3.2rem;
    line-height: 3.2rem;
    width: 90%;
    color: #000000;
    overflow: hidden;
    display: inline-block;
    float: left;
    margin: 0.5rem 0;
}

.menu .menu-content ul li .iconfont{
    width: 10%;
    cursor: pointer;
}

.menu .menu-content>ul li ul{
    padding-left: 3rem;
}

.menu .menu-content>ul li ul li span{
    font-size: 1.6rem;
    color: #666666;
    height: 3rem;
    line-height: 3rem;
    width: 100%;
    overflow: hidden;
    margin: 0;
}

.menu .menu-content>ul li ul li span:hover{
    cursor: pointer;
    background-color: #666666;
    color: #fff;
}

.fold{
    position: fixed;
    top: 1rem;
    right: 0;
    height: 3.5rem;
    width: 3rem;
    background-color: #cccccc;
    text-align: center;
    border-radius: 0.5rem 0 0 0.5rem;
}

.fold span{
    font-size: 2.5rem;
    color: #666666;
}

.fold:hover{
    cursor: pointer;
}
/************menu-end***************/

.problem{
    width: 60rem;
}

pre{
    white-space: pre-wrap;
    white-space: -moz-pre-wrap;
    white-space: -o-pre-wrap;
}